Writing instrument



FIG. 1 is a front view of the writing instrument showing the new design, wherein the writing instrument tip is in a stored position.

FIG. 2 is a rear view thereof.

FIG. 3 is a right side view thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a bottom view thereof.

FIG. 6 is a top view thereof.

FIG. 7 is an isometric view thereof, wherein the writing instrument tip is in a stored position; and,

FIG. 8 is like FIG. 7, however the writing instrument tip is in an operational position.

The broken lines showing the tip in FIG. 8 are included for the purpose of illustrating the environment of the writing instrument and form no part of the claimed design. 

I claim the ornamental design for a writing instrument, as shown and described. 